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Unit: The Internet

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Possible mastery points

Introducing the Internet

Learn
What is the Internet?
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The ingredients of the Internet
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Connecting networks

Learn
Computer networks
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Physical network connections
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Bit rate, bandwidth, and latency
(Opens a modal)
Practice
Computer networksGet 3 of 4 questions to level up!
Bit rate and bandwidthGet 3 of 4 questions to level up!

Addressing the Internet

Learn
IP addresses
(Opens a modal)
IP address hierarchy
(Opens a modal)
Practice
IP addressesGet 3 of 4 questions to level up!
Internet addressing protocolGet 3 of 4 questions to level up!

Quiz 1

Level up on the above skills and collect up to 400 Mastery points

Routing with redundancy

Learn
IP packets
(Opens a modal)
Internet routing protocol
(Opens a modal)
Redundancy and fault tolerance
(Opens a modal)
Practice
Internet routing protocolGet 3 of 4 questions to level up!
Redundancy and fault toleranceGet 3 of 4 questions to level up!

Transporting packets

Learn
The problems with packets
(Opens a modal)
User Datagram Protocol (UDP)
(Opens a modal)
Transmission Control Protocol (TCP)
(Opens a modal)
Practice
Transmission Control Protocol (TCP)Get 3 of 4 questions to level up!
Transporting packetsGet 3 of 4 questions to level up!

Web protocols

Learn
The World Wide Web
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Domain Name System (DNS)
(Opens a modal)
Hypertext Transfer Protocol (HTTP)
(Opens a modal)
Practice
Domain name system (DNS)Get 3 of 4 questions to level up!
Hypertext Transfer Protocol (HTTP)Get 3 of 4 questions to level up!
Web protocolsGet 3 of 4 questions to level up!

Quiz 2

Level up on the above skills and collect up to 700 Mastery points

Scalable systems

Learn
Scalable systems
(Opens a modal)
Practice
Scalable systemsGet 3 of 4 questions to level up!

The Internet protocol suite

Learn
The Internet protocol suite
(Opens a modal)
Practice
The Internet protocol suiteGet 3 of 4 questions to level up!

Developing open protocols

Learn
Open protocol development
(Opens a modal)
Practice
Open protocol developmentGet 3 of 4 questions to level up!

The digital divide

Learn
The global digital divide
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The geographic digital divide
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The socioeconomic digital divide
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The digital use divide
(Opens a modal)
Practice
The digital divideGet 3 of 4 questions to level up!

Quiz 3

Level up on the above skills and collect up to 400 Mastery points
Up next for you:

Unit test

Level up on all the skills in this unit and collect up to 1500 Mastery points!

About this unit

This unit covers how the Internet works. Learn about the physical layer (Ethernet, Fiber, WiFi), the protocols (IP, TCP, UDP, DNS, HTTP), the World Wide Web, and the digital divide.